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Finding the Fourth Proportional to 524,503.40, 787,532.70 and 314,551.40

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Solution

The fourth proportional to 524,503.40, 787,532.70 and 314,551.40 is: 472,293.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,503.40 : 787,532.70 = 314,551.40 : x
  2. Step 2: Convert to fraction form
    524,503.40/787,532.70 = 314,551.40/x
  3. Step 3: Cross multiply
    524,503.40x = 787,532.70 × 314,551.40
  4. Step 4: Simplify right side
    524,503.40x = 247,719,513,330.78
  5. Step 5: Solve for x
    x = 247,719,513,330.78/524,503.40
  6. Step 6: Final answer
    x = 472,293.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.